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Finding the Fourth Proportional to 48,884.80, 67,485.60 and 40,897.60

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Solution

The fourth proportional to 48,884.80, 67,485.60 and 40,897.60 is: 56,459.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,884.80 : 67,485.60 = 40,897.60 : x
  2. Step 2: Convert to fraction form
    48,884.80/67,485.60 = 40,897.60/x
  3. Step 3: Cross multiply
    48,884.80x = 67,485.60 × 40,897.60
  4. Step 4: Simplify right side
    48,884.80x = 2,759,999,074.56
  5. Step 5: Solve for x
    x = 2,759,999,074.56/48,884.80
  6. Step 6: Final answer
    x = 56,459.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.